i hate to bring up the greenfield "gun" show again, but last time i swear. there was a person selling (real nice guy...not trying to offend) and he had a few ARs. said all three were brand new..man,i cant recall if it was bushmaster or colt....prolly doesnt matter....one was sorta olive drab. asked about it ,ya know duracoat or??? and he said it was karlon finish. as in spray paint. now to be fair i did not ask if it was spray or not. but anyway, is this an appropriate product? i mean i was taken back that a brand new AR would be finished that way. again, i'm not doggin this fella out. its just been heavy on my mind today. thoughts on that?